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Welfare economics is the study of
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how the allocation of resources affects economic well-being.
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Willingness to pay
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measures the value that a buyer places on a good.
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Consumer surplus
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is the difference between the amount that a consumer actually pays for a good and the
amount that the consumer is willing to pay for the good.
amount that the consumer is willing to pay for the good.
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A consumer's willingness to pay directly measures
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how much a buyer values a good.
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Suppose Lauren, Leslie and Lydia all purchase bulletin boards for their rooms for $15 each. Lauren's willingness to pay was $35, Leslie's willingness to pay was $25, and Lydia's willingness to pay was $30. Total consumer surplus for these three would be
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$45
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Refer to Table 7-2. If the price of Vanilla Coke is $6.90, who will purchase the good?
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David and Laura
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Refer to Table 7-2. Which of the following is not true?
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All of the above are true.
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Refer to Table 7-2. If the market price is $5.50, the consumer surplus in the market will be
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$4.50
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Refer to Table 7-2. If the market price is $3.80,
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Megan's consumer surplus is $1.70 and total consumer surplus for the five individuals is
$9.80.
$9.80.
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Refer to Table 7-3. If the market price of an orange is $1.20, the market quantity of oranges demanded per day is
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3
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Refer to Table 7-3. If the market price of an orange is $0.70, the market quantity of oranges demanded per day is
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7
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Refer to Table 7-3. The market quantity of oranges demanded per day is exactly 5 if the price of an orange, P, satisfies
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$0.75 < P < $0.80.
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Refer to Table 7-3. If the market price of an orange is $1.20, consumer surplus amounts to
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$1.40
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Refer to Table 7-3. If the market price of an orange is $0.40,
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7 oranges are demanded per day and total consumer surplus amounts to $5.50.
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Refer to Table 7-3. If the market price of an orange increases from $0.60 to $1.05, total consumer surplus
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decreased by $2.25
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Refer to Table 7-3. Who experiences the largest loss of consumer surplus when the price of an orange increases from $0.70 to $1.40?
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Alex
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Refer to Table 7-3. Who experiences the largest gain in consumer surplus when the price of an orange decreases from $1.05 to $0.75?
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Alex and Barb experience the same gain in consumer surplus, and Carlos's gain is zero.
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Refer to Table 7-3. Which of the following statements is correct?
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Neither Barb's consumer surplus nor Carlos's consumer surplus can exceed Alex's
consumer surplus, for any price of an orange.
consumer surplus, for any price of an orange.
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Refer to Figure 7-1. When the price is P1, consumer surplus is
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A+B+C
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Refer to Figure 7-1. When the price is P2, consumer surplus is
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A
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Refer to Figure 7-1. When the price rises from P1 to P2, consumer surplus
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decreases by an amount equal to B + C.
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Refer to Figure 7-1. Area C represents
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consumer surplus to new consumers who enter the market when the price falls from P2 to
P1.
P1.
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Refer to Figure 7-1. When the price rises from P1 to P2, which of the following statements is not true?
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Buyers place a higher value on the good after the price increase.
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Refer to Figure 7-4. Which area represents producer surplus when the price is P1?
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BCE
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Refer to Figure 7-4. Which area represents producer surplus when the price is P2?
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ACF
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Refer to Figure 7-4. Which area represents the increase in producer surplus when the price rises from P1 to P2?
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AFEB
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Refer to Figure 7-4. When the price rises from P1 to P2, which area represents the increase in producer surplus to existing producers?
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ABED
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Refer to Figure 7-4. Which area represents the increase in producer surplus when the price rises from P1 to P2 due to new producers entering the market?
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DEF
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Refer to Table 7-4. If the market price is $1,000, the producer surplus in the market is
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$750
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Refer to Table 7-4. If the market price is $1,100, the combined total cost of all participating sellers is
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$2,250
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Refer to Table 7-4. If the price is $1,000,
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Catherine is an eager supplier.
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Refer to Table 7-4. If the price is $775, who would be willing to supply the product?
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Catherine and Jackson
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Refer to Table 7-4. Suppose each of the five sellers can supply at most one unit of the good; then the market quantity supplied is exactly 3 if the price is
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$1,170
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Refer to Table 7-4. Who is a marginal seller when the price is $1,200?
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only Jill
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Refer to Table 7-5. The equilibrium or market-clearing price is
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$8.00
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Refer to Table 7-5. At a price of $4.00, total surplus is
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less than it would be at the equilibrium price.
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Refer to Table 7-5. As the table suggests, the demand curve is a straight line and so is the supply curve. Taking this into account, when there is equilibrium, consumer surplus is
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$16
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Refer to Table 7-5. As the table suggests, the demand curve is a straight line and so is the supply curve. Taking this into account, when there is equilibrium, producer surplus is
answer
$32
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Refer to Table 7-5. As the table suggests, the demand curve is a straight line and so is the supply curve. Taking this into account, when there is equilibrium, total surplus is
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$48
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Refer to Table 7-5. As the table suggests, the demand curve is a straight line and so is the supply curve. Take this into account and suppose the price is $8, with only 4 pizzas being bought and sold. Consumer surplus amounts to
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$12
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Refer to Table 7-5. As the table suggests, the demand curve is a straight line and so is the supply curve. Take this into account and suppose the price is $8, with only 4 pizzas being bought and sold. Producer surplus amounts to
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$24
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Refer to Table 7-5. As the table suggests, the demand curve is a straight line and so is the supply curve. Take this into account and suppose the price is $8, with only 4 pizzas being bought and sold. Total surplus amounts to
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$36
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Even though participants in the economy are motivated by self-interest, the "invisible hand" of the marketplace guides this self-interest into promoting general economic well-being.
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TRUE
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Unless markets are perfectly competitive, they may fail to maximize the total benefits to buyers and sellers.
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TRUE